blackbenzz

You are correct that it is not a regular pitch. I've been to several local stores and tried a few plugs but no luck yet. The pitch seems to be a piping thread like NPT. Not what others suggested. I will try to go to fastenal tomorrow and pick something up for you. They are closed on the weekends.

SavMan

I always thought it was a 1/8 NPT tapered thread

w4sim

Iv managed to "borrow" a supercharger nut, take it to an engineering firm and they have confirmed its a 10x1.0 nut, commonly used in high pressure hoses and connections.

Regular threads on M10 nuts are either 1.5 or at best 1.25. These are a little unique in that sense that its only a 1.0 pitch. I was told this is because of the pressures these nuts have to take, which i can only assume will be high in that supercharger, especially with all that heat.


But MANY MANY thanks to all who have helped, without your information and guidance i would have been completely and utterly lost.

A special thanks to Blackbenzz for running around trying to get the exact match, i know that couldnt not have been easy. If theres anything i can help you with in the future then please let me know.

Thanks chaps.

jnash

That's great to know the exact thread pitch and diameter. I havent search yet, but where did you end up sourcing your sc screw from finally? I would like to have a spare.

w4sim

Iv just ordered these earlier today as they look the exact same thing, but im not 100% sure until i get them and then fit them to the supercharger, which i wont know until the weekend.

But these are the only ones i could source here, they do ship internationally if needs be:-

http://wrekinpneumatics.fluidfitting...00220053/AKM10

shardul

iTrader: (1)

So we all can agree it is a Metric thread right and not NPT?

w4sim

Oh yeah, its Metric alright. But your problem is the thread pitch. Like i said earlier most on an M10 screw/bolt will be 1.5 or 1.25 . . . . these ones are 1.0.

Just make sure you get the right thread thats all.